EP1680440A1 - Derives d'acide acremonique - Google Patents

Derives d'acide acremonique

Info

Publication number
EP1680440A1
EP1680440A1 EP04797620A EP04797620A EP1680440A1 EP 1680440 A1 EP1680440 A1 EP 1680440A1 EP 04797620 A EP04797620 A EP 04797620A EP 04797620 A EP04797620 A EP 04797620A EP 1680440 A1 EP1680440 A1 EP 1680440A1
Authority
EP
European Patent Office
Prior art keywords
compound
alkyl
formula
alkoxy
present
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04797620A
Other languages
German (de)
English (en)
Inventor
Gerd Ascher
Mathias Ferencic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nabriva Therapeutics Forschungs GmbH
Original Assignee
Sandoz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of EP1680440A1 publication Critical patent/EP1680440A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J13/00—Normal steroids containing carbon, hydrogen, halogen or oxygen having a carbon-to-carbon double bond from or to position 17
    • C07J13/007—Normal steroids containing carbon, hydrogen, halogen or oxygen having a carbon-to-carbon double bond from or to position 17 with double bond in position 17 (20)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04—Antibacterial agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00

Definitions

  • the present invention relates to acremonic acid derivatives.
  • the present invention provides 2-(16-Acetoxy-3,7-dihydroxy-4,8,10,14- tetramethyl-6-[hydroxy, (C 1-22 )alkoxy or carbonyloxyj-hexadecahydro- cyclopenta[a]phenanthren-17-ylidene)-6-methyl-heptanoic acids, e.g. a compound of formula
  • R is hydrogen, CO-F ⁇ or (C 1-22 )alkyl, such as methyl, ethyl, n-propyl or n-hexyl
  • R t is hydrogen, (C ⁇ alkyl, such as ethyl, n-propyl, isopropyl, 2-ethylpropyl, 1 ,1- dimethylpropyl, n-butyl, isobutyl, t.butyl, n-pentyl, t.butylmethyl, n-hexyl; (C 3 . 8 )cycloalkyl, (C ⁇ .
  • - aryl is unsubstituted or substituted by amino.
  • - R is hydrogen, (C ⁇ alkyl, or CO-R ⁇
  • - R ! is hydrogen, (C 1-6 )alkyl, (C 3-6 )cycloalkyl, e.g. unsubstituted (C 3 . 6 )cycloalkyl or (C 3 .
  • each single defined substitutent may be a preferred substituent, e.g. independently of each other substitutent defined.
  • the present invention provides a compound of formula I, wherein R is a group of formula
  • the present invention provides a compound of formula
  • - alkyl includes (C ⁇ . 22 )alkyl, such as (C 1-8 )alkyl, e.g. (C ⁇ . 6 )alkyl, e.g. including (d ⁇ )alkyl;
  • - cycloalkyl includes (C 3 . 8 )cycloalkyl, e.g. (C 3 . 6 )cycloalkyl, such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl:
  • - alkoxyalkyl includes (C 1 . 6 )alkoxy-(C 1 ⁇ )alkyl, such as (C 1-4 )alkoxy-(C ⁇ Jt )alkyl, e.g. methoxymethyl, ethoxymethyl, 1 ,1-dimethyl-1-n-propoxymethyl, 1 ,1-dimethyl-1- isopropoxymethyl, methoxyethyl, 1 ,1-dimethyl-1-methoxy-methyl; - alkoxy includes (C 1-6 )alkoxy, such as (C 1-3 )alkoxy; e.g. methoxy, ethoxy, propoxy;
  • - haloalkyl includes halo(C 1-6 )alkyl, e.g. halo(C ⁇ )alkyl, comprising one or more halogen atoms, e.g. including (C ⁇ alkyl substituted by one or more CF 3 , such as -CH(CF 3 ) , 1 ,1- dimethyl-2-fluoroethyl, 1 ,1-dimethyl-2-chloroethyl or fluoro-isopropyl;
  • - hydroxyalkyl includes hydroxy(C 1- )alkyl, such as hydroxymethyl;
  • alkoxycarbonylalkyl includes (C ⁇ . 4 )alkoxycarbonyl-(C 1 . 4 )alkyl, such as methoxycarbonyl-(C 1- 4 )alkyl, e.g. methoxycarbonylethyl;
  • - alkoxy-alkoxy-alkyl includes (C 1 . )alkoxy-(C 1 . 4 )alkoxy-(C 1 . )alkyl, e.g. methoxy-ethoxy-ethyl;
  • - aminoalkyl includes amino(C 1 . )alkyl, such as aminomethyl; - amino includes unsubstituted amino and amino substituted by (C -4 )alkyl, di(C 1 ⁇ )alkyl, or such as dimethylamino, methoxycarbonylamino;
  • - heterocyclyl includes heterocyclyl having 5 or 6 ring members and 1 to 4 heteroatoms selected from S, O and N, e.g. heterocyclyl having 5 ring members, e.g. the heteroatom is selected from O, such as tetrahydrofuranyl;
  • - aryl includes (C 6- ⁇ 8 )aryl, such as phenyl;
  • - brigded cycloalkyl includes cycloalkyl bridged by alkyl, e.g. bridged (C 7-12 )cycloalkyl, such as bridged (C 10 )cycloalkyl, e.g. adamantanyl;
  • - halogen includes fluoro, chloro, bromo, iodo, e.g. fluoro, chloro, e.g. fluoro.
  • a compound of formula I includes a compound of formula l P .
  • a compound of the present invention includes a compound in any form, e.g. in free form, in the form of a salt, in the form of a solvate and in the form of a salt and a solvate.
  • the present invention provides a compound of the present invention in the form of a salt.
  • a salt of a compound of the present invention includes a metal salt or an acid addition salt.
  • Metal salts include for example alkali or earth alkali salts, e.g. a sodium salt.
  • Acid addition salts include salts of a compound of formula I with an acid, e.g. hydrogen fumaric acid, fumaric acid, naphthalin-1 ,5-sulphonic acid, hydrochloric acid, deuterochloric acid.
  • a compound of the present invention in free form may be converted into a corresponding compound in the form of a salt; and vice versa.
  • a compound of the present invention in free form or in the form of a salt and in the form of a solvate may be converted into a corresponding compound in free form or in the form of a salt in non-solvated form; and vice versa.
  • a compound of of the present invention may exist in the form of isomers and mixtures thereof; e.g. optical isomers, diastereoisomers, cis/trans conformers.
  • a compound of the present invention may e.g. contain asymmetric carbon atoms and may thus exist in the form of enatiomers or diastereoisomers and mixtures thereof, e.g. racemates. Substituents at any asymmetric carbon atom may be present in the (R)-, (S)- or (R,S)-configuration, preferably in the (R)- or (S)-configuration.
  • a compound of formula I has several asymmetric C-atoms and substitutents bound to such asymmetric C-atoms may be in the (R)- and in the (S)- configuration, e.g. including mixtures thereof, e.g. as set out in a compound of formula l P .
  • a compound of formula I is a compound of formula l P .
  • a compound of formula I has a double bond and substituents bound to that double bond may be in the form of cis- or trans conformers, or mixtures thereof.
  • Isomeric mixtures may be separated as appropriate, e.g. according, e.g. analogously, to a method as conventional, to obtain pure isomers.
  • the present invention includes a compound of the present invention in any isomeric form and in any isomeric mixture.
  • the present invention also includes tautomers of a compound of formula I, where tautomers can exist.
  • the present invention provides a process for the production of a compound of formula I comprising the steps a. protecting the carboxy group of position 21 and optionally the hydroxy group attached to the ring structure in position 3 of the ring structure in a compound of formula
  • step b. reacting a compound as obtained in step b. with a (C 1 . 8 )alkylhalogenide, hydrogenating the double bond in positions 24 and 25, and, e.g. in the course of double bond hydrogenation, splitting off the protecting group(s), to obtain a compound of formula I, wherein R is (d ⁇ alkyl, or c3. reacting a compound as obtained in step a.
  • R ⁇ has the meaning of R ⁇ as defined above, and additionally includes residues as defined in R 1 (wherein functional groups, such as amino, hydroxy, carboxyl, are protected, either in the presence of a condensation agent, or with a compound of formula R'rCOOH, wherein R is as defined above, in a reactive form, e.g. in the form of a carboxylic acid halogonide, to obtain a compound as obtained in step b., wherein the group attached to the ring structure in position 6 is a group of formula CO-R ⁇ , wherein R is as defined above, hydrogenating the double bond in positions 24 and 25, and, e.g.
  • the protecting group attached to the carboxy group of position 21 is present, and the protecting group attached at oxygen atom attached to the ring structure in position 3, is optionally present.
  • the reaction works in both cases, but, e.g. to obtain higher purity of the reaction products, both protecting groups are preferably present.
  • Protecting groups include groups as appropriate, e.g. such as conventional, preferably protection groups which may be splitt off by hydrogenation under conditions, under which the double bond in positions 24 and 25 is converted into a single bond.
  • Such groups e.g. include benzyloxymethyl and diphenylmethyl groups, e.g. and benzyl groups.
  • R has the meaning of Ri as defined above and additionally includes residues as defined in Ri, wherein functional groups, such as hydroxy, carboxyl and amino, are protected, e.g. hydroxy or carboxyl are protected by a benzyl group; amino is protected by a benzyloxycarbony groupl; e.g. residues of Ri having functional groups such as amino, carboxy or hydroxy, are in a protected form, e.g. in the form of benzyloxycarbonylamino, benzyloxy or benzyloxycarbonyl.
  • Such protecting groups may be splitt off in the course of double bond hydrogenation in position 24 and 25, or at an appropriate stage.
  • the present invention provides a process for the production of a compound of formula I, wherein R is as defined above, comprising hydrogenating the double bond in positions 24 and 25 and splitting off the protecting group(s), e.g. in the course of double bond hydrogenation, in a compound of formula such as of formula
  • Pro ⁇ is a protecting group, such as benzyloxymethyl or diphenylmethyl, e.g. benzyloxymethyl,
  • Prot 2 is either other than a protecting group, or is a protecting group, e.g. Prot 2 is H or benzyloxymethyl, and R' has the meaning of R as defined above and additionally includes residues as defined in R, wherein functional groups, such as amino, hydroxy, carboxyl groups, are protected.
  • a compound of formula I may be produced by a process comprising the steps a. reacting a compound of formula II, or ll P , respectively, with benzyloxymethylchloride in the presence of a base, e.g. H ⁇ nig ' s base, in organic solvent, e.g. an halogenated hydrocarbon, such as CH 2 CI 2 , to obtain a compound of formula such as of formula
  • a compound of formula IV or IV P , respectively, with a base, e.g. an alkali or earth alkali hydroxide, such as NaOH, in organic solvent, e.g. aqueous organic solvent, e.g. in a solvent mixture, such as terahydrofuran/MeOH/H 2 O, to obtain a compound of formula
  • a base e.g. an alkali or earth alkali hydroxide, such as NaOH
  • organic solvent e.g. aqueous organic solvent, e.g. in a solvent mixture, such as terahydrofuran/MeOH/H 2 O
  • R' ⁇ has the meaning of R 1 as defined above, and additionally includes residues as defined in R 1 (wherein functional groups, such as amino, hydroxy, carboxyl groups, are protected, in the presence of a base, such as pyridine and 4-dimethylaminopyridine, to obtain a compound of formula
  • the present invention provides a compound of formula
  • Pro ⁇ is a protecting group, such as benzyloxymethyl or diphenylmethyl, e.g. benzyloxymethyl
  • Prot 2 is either other than a protecting group, or is a protecting group, e.g. Prot 2 is H, benzyloxymethyl or diphenylmethyl
  • R is as defined above, e.g. which compounds of formula VII, or VII P , respectively, are useful as intermediates in the production of a compound of formula I, or l P , respectively.
  • a compound of formula VII, or VII P , respectively, includes compounds of formulae VI, or VI P , respectively.
  • the present invention provides a compound of formula IV, or IV P , respectively, and of formula V, or V P , respectively and of formula VI, or VI P , respectively, wherein R ⁇ is as defined above, which compounds are useful as intermediates in the production of a compound of formula I, or l P , respectively, wherein R is a group -CO-R ⁇
  • the present invention provides a compound of formula
  • Proti and Prot 2 are as defined above, and R" is (C 1-8 )alkyl; e.g., which compounds are useful as intermediates in the production of a compound of formula I, or l P , respectively, wherein R is (d. 8 )alkyl.
  • - R" is (C ⁇ )alkyl, e.g. methyl, ethyl, n-propyl or hexyl.
  • a compound of the present invention of formulae II, ll P , III, lll P , IV, IV P , V, V P , VI, VI P , VII, Vllp, VIII and VIII P is herein also designated as "an intermediate of (according to) the present invention".
  • An intermediate of the present invention includes an intermediate in any form, e.g. in free form, in the form of a salt, in the form of a solvate and in the form of a salt and a solvate.
  • the present invention provides an intermediate of the present invention in the form of a salt.
  • a salt of an intermediate of the present invention includes a metal salt or an acid addition salt.
  • Metal salts include for example alkali or earth alkali salts, e.g. a sodium salt.
  • Acid addition salts include salts of a compound of formula I with an acid, e.g. hydrogen fumaric acid, fumaric acid, naphthalin-1 ,5- sulphonic acid, hydrochloric acid, deuterochloric acid.
  • An intermediate of the present invention may exist in the form of isomers and mixtures thereof; e.g.
  • the present invention includes an intermediate of the present invention in any isomeric form and in any isomeric mixture.
  • the present invention also includes tautomers of an intermediate of the present invention, where tautomers can exist.
  • further functional groups where present, optionally may be in protected form, e.g. amino, hydroxy or carboxyl groups, as indicated above; or may be in the form of a salt, where a salt-forming group is present.
  • Protecting groups, optionally present beside Prot ! and Prot 2 may be removed at an appropriate stage, e.g. according, e.g. analogously, to a method as conventional.
  • a compound of formula I, or l P , respectively, obtained by a process provided by the present invention may be converted into another compound of formula I, or l P , respectively, e.g. or a compound of formula I, or l , respectively, obtained in free form may be converted into a salt of a compound of formula I, or l P , respectively, and vice versa.
  • Any compound described herein e.g. a compound of the present invention and intermediates of formula II, ll P , III, lll P , IV, IV P , V, V P , VI, VI P , VII, VII P , VIII and VIII P may be prepared as appropriate, e.g. according, e.g. analogously, to a method as conventional, e.g. or as specified herein.
  • the compounds of the present invention exhibit pharmacological activity and are therefore useful as pharmaceuticals.
  • the compounds of the present invention show antimicrobial, e.g. antibacterial activity against gram positive bacteria and gram negative, such as Staphylococcus, e.g. S. aureus, MRSA (Methicillin Resistant S. aureus), MSSA (Methicillin Sensitive S. aureus), Enterococcus, e.g. E. faecalis, E.faecium, Moraxella, e.g.
  • Staphylococcus aureus ATCC 29213 and ATCC 29506; Enterococcus faecalis ATCC
  • mice infected with Staphylococcus aureus show an ED 50 value of ca. 8.55 mg/kg body weight (ranging from 5.54 to 13.34).
  • aureus B29 (clinical isolate, MRSA) and treated orally 1 and 4 hours after infection with a compound of example 1 , e.g. in the form of its sodium salt, show an ED 50 value of ca. 6.65 mg/kg body weight, (ranging from 4.25 to 11.98).
  • Mice infected with S. aureus B29 (clinical isolate, MRSA) and treated subcutaneously 1 and 4 hours after infection with a compound of example 1 , e.g. in the form of its sodium salt show an ED 50 value of ca. 3.20 mg/kg body weight, (ranging from 1.93 to 5.85).
  • the ED 50 values are calculated by Probit analysis of the administered dosages of compounds.
  • Activity is determined by numbers of surviving animals per group of 8 or 6 mice, respectively, per dosage unit on day 5 after infection.
  • MSSA methicillin-sensitive Staphylococcus aureus
  • MRSA methicillin-resistant S. aureus
  • the compounds of the present invention are therefore useful for the treatment of microbial, e.g. bacterial diseases, e.g. the treatment of diseases associated with bacterial infections. Treatment includes treatment and prevention (prophylaxis).
  • the present invention provides a compound of the present invention for use as a pharmaceutical, e.g. in the treatment of diseases associated with microbial, such as bacterial infections.
  • the present invention provides the use of a compound of the present invention for the manufacture of a medicament, e.g. in the form of a pharmaceutical composition, for the treatment of a microbial disease, such as bacterial diseases, for example of diseases associated with bacterias such as Staphylococcus spp. and Moraxella catarrhalis.
  • a microbial disease such as bacterial diseases, for example of diseases associated with bacterias such as Staphylococcus spp. and Moraxella catarrhalis.
  • the compound of example 1 is a preferred compound of the present invention. It has, for example been determined that the minimum inhibitory concentration, e.g. MIC90 ( ⁇ g/ml), of the compound of Example 1 , e.g. in the form of its sodium salt, against, for example S. aureus (MRSA) is of about 0.2. It is therefore, indicated that for the treatment of bacterial diseases, the compounds of the present invention may be administered to larger mammals, for example humans, by similar modes of administration at similar dosages than conventionally used with Linezolid.
  • MRSA S. aureus
  • the present invention provides a method of treatment of microbial, e.g. bacterial, diseases, e.g. diseases mediated by bacterias such as Staphylococcus spp. and Moraxella, which treatment comprises administering to a subject in need of such treatment an effective amount of a compound of the present invention; e.g. in the form of a pharmaceutical composition, e.g. in combination with another pharmaceutically active agent.
  • microbial e.g. bacterial
  • diseases e.g. diseases mediated by bacterias such as Staphylococcus spp. and Moraxella
  • a compound of the present invention includes one or more, preferably one, compounds of the present invention, e.g. a combination of two or more compounds of the present invention.
  • an indicated daily dosage is in the range from about 0.01 g to about 1.0 g (from about 1 mg/kg to about 15 mg/kg) of a compound of the present invention; conveniently administered, for example, in divided doses up to four times a day.
  • a compound of the present invention may be administered by any conventional route, for example enterally, e.g. including nasal, buccal, rectal, oral, administration; parenterally, e.g. including intravenous, intramuscular, subcutanous administration; or topically; e.g. including epicutaneous, intranasal, intratracheai administration; e.g. in form of coated or uncoated tablets, capsules, (injectable) solutions, solid solutions, suspensions, dispersions, solid dispersions; e.g. in the form of ampoules, vials, in the form of creams, gels, pastes, inhaler powder, foams, tinctures, lip sticks, drops, sprays, or in the form of suppositories.
  • enterally e.g. including nasal, buccal, rectal, oral, administration
  • parenterally e.g. including intravenous, intramuscular, subcutanous administration
  • topically e.g. including epicutaneous, intranasal, intrat
  • the compounds of the present invention may be administered in the form of a pharmaceutically acceptable salt, e.g. an acid addition salt or metal salt; or in free form; optionally in the form of a solvate.
  • a pharmaceutically acceptable salt e.g. an acid addition salt or metal salt
  • the compounds of the present invention in the form of a salt exhibit the same order of activity as the compounds of the present invention in free form; optionally in the form of a solvate.
  • a compound of the present invention may be used for pharmaceutical treatment according to the present invention alone, or in combination with one or more other pharmaceutically active agents.
  • Such other pharmaceutically active agents include other antibactials, e.g. penicillins, cephalosporins, macrolides, vancomycin, rifampicin.
  • Combinations include fixed combinations, in which two or more pharmaceutically active agents are in the same formulation; kits, in which two or more pharmaceutically active agents in separate formulations are sold in the same package, e.g. with instruction for co-administration; and free combinations in which the pharmaceutically active agents are packaged separately, but instruction for simultaneous or sequential administration are given.
  • the present invention provides a pharmaceutical composition
  • a pharmaceutical composition comprising a compound of the present invention in association with at least one pharmaceutical excipient, e.g. appropriate carrier and/or diluent, e.g. including fillers, binders, disintegrators, flow conditioners, lubricants, sugars and sweeteners, fragrances, preservatives, stabilizers, wetting agents and/or emulsifiers, solubilizers, salts for regulating osmotic pressure and/or buffers, e.g and further comprising another pharmaceutically active agent.
  • a pharmaceutical excipient e.g. appropriate carrier and/or diluent, e.g. including fillers, binders, disintegrators, flow conditioners, lubricants, sugars and sweeteners, fragrances, preservatives, stabilizers, wetting agents and/or emulsifiers, solubilizers, salts for regulating osmotic pressure and/or buffers, e.g
  • compositions may be manufactured according, e.g. analogously, to a method as conventional, e.g. by mixing, granulating, coating, dissolving or lyophilizing processes.
  • Unit dosage forms may contain, for example, from about 0.5 mg to about 1000 mg, such as 1 mg to about 500 mg.
  • Acremonic acid (also known as Cephalosporin P1 ) is a compound of formula ll P .
  • 6-O-(2'-fluoroisobutyryl)-24, 25-dihydro-acremonic acid is obtained.
  • R ⁇ is as defined in TABLE 3, useful in the production of a compound of formula l P .
  • the numbers in column "EX”, marked with an apostroph (e.g. 1'), are intermediates used in the production of a the corresponding compound of formula l P in TABLE 1.
  • E.g. the intermediate "1"' in TABLE 3 is the intermediate used in the production of the compound of Example 1 in TABLE 1.
  • Mass spectroscopy data (m/z (ESI)), also set out in TABLE 3, are determined by a Finnigan Navigator ThermoQuest LC/MS system.
  • R" is as defined in TABLE 4, useful in the production of a compound of formula l P .
  • the numbers in column "EX”, marked with an apostroph (e.g. 50'), are intermediates used in the production of a the corresponding compound of formula l P in TABLE 2.
  • E.g. the intermediate "50"' in TABLE 4 is the intermediate used in the production of the compound of Example 50 in TABLE 2.
  • Mass spectroscopy data (m/z (ESI)), also set out in TABLE 4, are determined by a Finnigan Navigator ThermoQuest LC/MS system.

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  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Engineering & Computer Science (AREA)
  • Communicable Diseases (AREA)
  • Oncology (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Steroid Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

L'invention concerne un composé ayant la formule (I) dans laquelle R a des significations différentes, et son utilisation en tant que produit pharmaceutique.
EP04797620A 2003-11-05 2004-11-04 Derives d'acide acremonique Withdrawn EP1680440A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0325828.2A GB0325828D0 (en) 2003-11-05 2003-11-05 Organic compounds
PCT/EP2004/012496 WO2005049634A1 (fr) 2003-11-05 2004-11-04 Derives d'acide acremonique

Publications (1)

Publication Number Publication Date
EP1680440A1 true EP1680440A1 (fr) 2006-07-19

Family

ID=29725992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797620A Withdrawn EP1680440A1 (fr) 2003-11-05 2004-11-04 Derives d'acide acremonique

Country Status (11)

Country Link
US (1) US20080009470A1 (fr)
EP (1) EP1680440A1 (fr)
JP (1) JP2007509905A (fr)
CN (1) CN1875031A (fr)
AR (1) AR046571A1 (fr)
BR (1) BRPI0415716A (fr)
CA (1) CA2544769A1 (fr)
GB (1) GB0325828D0 (fr)
PE (1) PE20051005A1 (fr)
TW (1) TW200528468A (fr)
WO (1) WO2005049634A1 (fr)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005049634A1 *

Also Published As

Publication number Publication date
GB0325828D0 (en) 2003-12-10
PE20051005A1 (es) 2005-12-22
US20080009470A1 (en) 2008-01-10
BRPI0415716A (pt) 2006-12-19
CN1875031A (zh) 2006-12-06
JP2007509905A (ja) 2007-04-19
TW200528468A (en) 2005-09-01
CA2544769A1 (fr) 2005-06-02
WO2005049634A1 (fr) 2005-06-02
AR046571A1 (es) 2005-12-14

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